Malicious PDF — malware analysis report

Static analysis result for SHA-256 b90006042cd46bb4…

MALICIOUS

PDF

70.2 KB Created: 2020-11-22 19:40:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: d9b95a068a56097b6ae3dc9beea40868 SHA-1: 90dd0b31d102954b94b674dd4f239ecec75c31c8 SHA-256: b90006042cd46bb4999f9c9133d6b5f2e6835050d130de36cf8a1d568accb35a
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://trafficel.ru/123?utm_term=nordictrack+user+manual PDF link annotation
    • https://kelobutino.weebly.com/uploads/1/3/0/9/130969458/54c7be9deaa1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375355/normal_5faa048400d73.pdfIn PDF document text
    • https://gokopawe.weebly.com/uploads/1/3/4/4/134493337/b94e1a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369316/normal_5f8c238e1f1ea.pdfIn PDF document text
    • https://tisogile.weebly.com/uploads/1/3/4/7/134728595/1661528.pdfIn PDF document text
    • https://dakawowonogi.weebly.com/uploads/1/3/4/6/134663237/db78f472.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369496/normal_5f911c7eadf6f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/rizijubovapuk/bcd_addition.pdfIn PDF document text
    • https://s3.amazonaws.com/farezelof/bsc_industrial_chemistry_notes.pdfIn PDF document text
    • https://s3.amazonaws.com/jijumupade/mole_mapping_dermatologist.pdfIn PDF document text
    • https://s3.amazonaws.com/vabedafozo/sonic_forces_mod_apk_mod_menu.pdfIn PDF document text
    • https://s3.amazonaws.com/tibanepoxilibud/tufanilagutope.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c8534b7b-a651-4d3d-8621-62f7e8b47495/80773000662.pdfIn PDF document text
    • https://s3.amazonaws.com/jedaxopopuko/torezet.pdfIn PDF document text
    • https://s3.amazonaws.com/fopalew/waiting_2005_full_movie_unrated.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d75f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD75F 5120 bytes
SHA-256: b876f60e07f9890f56e17cd5657ee62b76699afaf5e0b101637b62683ec2ae06
font_01_sfnt_off0000e8b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8B8 10304 bytes
SHA-256: 351f7a01ade15714334a2538634b86710ead897bee3c324f1c698d8b2ae4064c